13849859 has 2 divisors, whose sum is σ = 13849860. Its totient is φ = 13849858.

The previous prime is 13849853. The next prime is 13849889. The reversal of 13849859 is 95894831.

It is a weak prime.

It is an emirp because it is prime and its reverse (95894831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13849859 - 2⁸ = 13849603 is a prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (13849853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6924929 + 6924930.

It is an arithmetic number, because the mean of its divisors is an integer number (6924930).

Almost surely, 2^13849859 is an apocalyptic number.

13849859 is a deficient number, since it is larger than the sum of its proper divisors (1).

13849859 is an equidigital number, since it uses as much as digits as its factorization.

13849859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 47.

The square root of 13849859 is about 3721.5398694626. The cubic root of 13849859 is about 240.1495537783.

The spelling of 13849859 in words is "thirteen million, eight hundred forty-nine thousand, eight hundred fifty-nine".